19-03-2017, 04:19 PM
Prolactin is the main hormone that stimulates mammary tissues to produce milk. Oddly enough, this hormone’s production is not limited to pregnancy; it can also be found during the first few days of the female menstrual cycle.
Like estrogen and progesterone, the presence of prolactin within the female body affects the size of her breasts. Although only slight, it will cause the breasts to expand for a few days. During the early part of pregnancy, it is mainly estrogen and progesterone that are responsible for engorging the breasts; after the child is born prolactin kicks in and maintains the increased breast size by filling the mammary glands with milk.
Like estrogen and progesterone, the presence of prolactin within the female body affects the size of her breasts. Although only slight, it will cause the breasts to expand for a few days. During the early part of pregnancy, it is mainly estrogen and progesterone that are responsible for engorging the breasts; after the child is born prolactin kicks in and maintains the increased breast size by filling the mammary glands with milk.